I have a new Macpro which came with 10.4.9 pre-installed, for the last month pro-tools has flatly refused to open, the drivers work fine with logic but no PT. Yesterday I installed the 2 security updates (1 of which was specifically for quicktime) and hey presto PT LE now works perfectly!
I know there are a load of folk with the same problem so if you are one of them give software update a whirl....
I know there are a load of folk with the same problem so if you are one of them give software update a whirl....